S7Plus Driver

The WinCC OA S7Plus driver uses the Siemens communication library IOMS and is meant for the communication with Siemens S7 PLCs. The driver can communicate with S7-1200, S7-1500, S7-1500 Software Controller and ET200SP devices and provides the following functionality:

  • Sending data to the PLC

  • Polling data from the PLC

  • Receiving unsolicited data from the PLC via subscriptions

  • Time synchronization of WinCC OA and S7 PLC

  • Statistical evaluation (e.g. reads and writes per second, etc.)

  • Safe connection via S7DOS / PC Identifier

  • Support of all access levels (from "no protection" to "full protection")

  • Optimized data access